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Steel sprocket with central hub and bore for shaft · SKF PHS 20B-1TBH25
Sprockets and gears SKF PHS 20B-1TBH25

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Sprockets and gears SKF PHS 20B-1TBH25

Manufacturer Part Number
PHS 20B-1TBH25
Brand
SKFOfficial brand
Category
Power transmission
Subcategory
Sprockets and gears

SKF

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Description

SKF PHS 20B-1TBH25 is a sprockets and gears reference, within Power transmission. Request a quote for PHS 20B-1TBH25 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

SKF PHS series sprockets are chain sprockets for roller chain drives according to ANSI standard. They are mounted on shafts and mesh with the chain to transmit motion and power in a wide variety of machines. Their designation combines the chain pitch, the number of strands and the number of teeth, which allows selecting the exact part for each transmission ratio. MR Accesorios Industriales carries this line as part of its power transmission offering.

The designation of these sprockets follows a clear pattern: PHS indicates the series, followed by a number that represents the chain pitch in eighths of an inch (for example, 06 for 3/8" pitch and 10 for 5/8" pitch), then B indicates that it is for single-strand chain, and TBH with the final number indicates the number of teeth. Thus, a PHS 06B-1TBH19 is a sprocket for ANSI 06B single-strand chain with 19 teeth, while a PHS 10B-1TBH30 corresponds to 10B pitch with 30 teeth. This nomenclature allows quick identification of the part.

These sprockets are used in chain drives of industrial, agricultural and transport machinery. In Argentina, they are common in conveyor belts, bucket elevators, machine tools, equipment for the food, textile and woodworking industries. They are also found in drive systems for pumps, compressors and fans. Their versatility makes them suitable for applications requiring a constant and reliable transmission ratio.

To select the right sprocket, take into account the chain pitch, the number of teeth, the shaft diameter and the type of mounting. Verify that the bore and keyway match the shaft. Lubrication is essential: use the recommended lubricant according to speed and load. Ensure correct alignment between sprocket and chain to avoid premature wear. Sealing does not apply to this type of component, but axial and radial play must be minimal.

Regarding equivalences, SKF PHS series sprockets are interchangeable with other manufacturers that follow the ANSI standard for roller chains. When replacing, compare the pitch, the number of teeth, the outer diameter and the bore. Do not invent codes: if you have doubts, consult us with the complete designation. Interchangeability between brands is possible as long as the standardized dimensions are respected.

To request a quote, send the complete code of the sprocket you need via WhatsApp to MR Accesorios Industriales. If you are not sure of the designation, send us a photo or the data of the chain and shaft, and we will help you identify it. With more than 80 years in the industry, at MR Accesorios Industriales we advise you so you find the right part.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.

Dimensions

Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.

Frequently Asked Questions

What does the designation PHS 06B-1TBH19 mean?
PHS indicates the SKF sprocket series. 06B corresponds to ANSI 06B chain pitch (3/8"). 1TBH indicates one strand and the number 19 is the number of teeth. Thus, it is a sprocket for 3/8" pitch chain with 19 teeth.
How do I choose the right sprocket for my machine?
You need to know the chain pitch, the number of teeth required according to the transmission ratio, and the shaft dimensions (diameter and keyway). Also consider the available space and the lubrication and alignment conditions.
Are SKF PHS sprockets compatible with other brands?
Yes, by following the ANSI standard, they are interchangeable with sprockets from other manufacturers that respect the same standardized dimensions. Always verify pitch, number of teeth and diameters before replacing.
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